Correct Answer: D

Rationale: In this context, the word 'swathe' means to wrap something, usually in cloth or bandages. So the correct meaning of 'swathe' in the sentence is to wrap the baby in cloth. Choice A ('Nurse') is incorrect as it does not relate to the action of wrapping. Choice B ('Cleanse') and Choice C ('Change') are also incorrect as they do not capture the intended meaning of 'swathe' in the sentence.

Correct Answer: B

Rationale: The word 'sanguinary' is derived from the Latin word 'sanguinarius,' meaning bloodthirsty or bloodshed. In the context of the sentence, 'sanguinary' is used to indicate that surgery is a procedure that involves bloodshed. Therefore, the correct answer is B. Choice A ('Hopeful or cheerful') is incorrect because 'sanguinary' does not convey a positive or cheerful meaning. Choice C ('Difficult and protracted') is incorrect as 'sanguinary' specifically relates to blood or bloodshed, not difficulty or prolongation. Choice D ('Tricky and sensitive') is incorrect as 'sanguinary' does not imply trickiness or sensitivity but rather the presence of blood or bloodshed.

Correct Answer: D

Rationale: The abbreviation CDC stands for the Centers for Disease Control and Prevention, which is a well-known public health association in the United States. The CDC is a federal agency under the Department of Health and Human Services, responsible for protecting public health and safety by controlling and preventing disease, injury, and disability. Choices A, B, and C are incorrect as they do not accurately describe what the CDC is known for; it is not an online social network, a test for postgraduate students, or a pharmaceutical company.

Correct Answer: A

Rationale: The word 'simulated' means to imitate or replicate the characteristics or actions of something. It involves creating a representation that resembles the original. In this context, 'imitated' is the correct synonym as it aligns with the idea of mimicking or reproducing something to simulate it. Choices B, C, and D are incorrect as they do not reflect the concept of imitation or replication, which is central to the meaning of 'simulated.'

Correct Answer: A

Rationale: The abbreviation PDR stands for Physician's Desk Reference, which is a widely used book containing information about prescription drugs, including their uses, side effects, and dosages. Therefore, the abbreviation PDR is associated with drugs. Choices B, C, and D are incorrect because PDR specifically relates to drugs and not procedures, books, or muscle groups.